package com.kaifamiao.www.demo.Do28;

import java.util.Arrays;

public class Demo02 {
    public static void main(String[] args) {

        int[] arr = {1,2,3,4};

        int[] copy = arr.clone();

        System.out.println(arr);
        System.out.println(copy);
        System.out.println(Arrays.toString(copy));

        Student stu = new Student("大雾",23,"学习");
        System.out.println(stu);
    }
}
